- Category: Populated Place
- Type: Hamlet
- Latitude/Longitude: 51°31'47"N 3°34'12"W
- Eastings/Northings: 291181, 182385
- OS Grid: SS911823
- Mapcode Local: GBR HD.GYGL
- Mapcode Global: VH5HC.2TG1
Location and coordinates are for the approximate centre of Derwen within this administrative area.
Geographic features and populated places may cross administrative borders.